target/riscv: Don't allow guest to write to htinst

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: ca5359fec6b2aff851eef3b3bc4b53cb5d4ad194.1597259519.git.alistair.francis@wdc.com
Message-Id: <ca5359fec6b2aff851eef3b3bc4b53cb5d4ad194.1597259519.git.alistair.francis@wdc.com>

diff --git a/target/riscv/csr.c b/target/riscv/csr.c
index 6a96a01b1cf8c114c24178b58776c74f9a711095..0f035d33b1dcad77bf00c72972d991d8a318362a 100644 (file)
--- a/target/riscv/csr.c
+++ b/target/riscv/csr.c
@@ -922,7 +922,6 @@ static int read_htinst(CPURISCVState *env, int csrno, target_ulong *val)
 
 static int write_htinst(CPURISCVState *env, int csrno, target_ulong val)
 {
-    env->htinst = val;
     return 0;
 }